After spending decades living in the shadow of his more famous and successful sibling, Consulting Detective Sigerson Holmes (Wilder) is called upon to help solve a crucial case that leads him on a hilarious trail of false identities, stolen documents, secret codes... and exposed backsides.
Gene Wilder
as Sigerson Holmes
Madeline Kahn
as Jenny Hill
Marty Feldman
as Sgt. Orville Stanley Sacker
Dom DeLuise
as Eduardo Gambetti
Leo McKern
as Moriarty
Roy Kinnear
as Moriarty's Assistant
John Le Mesurier
as Lord Redcliff
Douglas Wilmer
as Sherlock Holmes
Michael Crane
as Renato
Albert Finney
as Man in Audience at Opera
Thorley Walters
as Dr. Watson
George Silver
as Bruner
